The ZHC Series are professional quality, passive and active out-put
combiners. These units are designed for use in headends to combine the outputs
of multiple modulators and processors. The ZHC-12 has twelve (12) broadband
input ports and one combined output port, while the ZHCA-16 and ZHCA-16b
have sixteen (16) input ports and one combined amplified output port.

These combiners feature high isolation between ports
due to an integrated directional coupler design. The input ports of the ZHC-12
and ZHCA-16 are broadband, accepting signals in the 50 to 450 MHz frequency
range. The ZHCA-16b accepts signals in the 50-600 frequency range. The ZHCA-16
and ZHCA-16b employ a single push-pull CATV style hybrid module. The overall
gain of the ZHCA-16 and ZHCA-16b is variable using a built-in manual gain
control, accessible via a front panel control. The ZHC Series are housed
in a single height, 1.75" high, rack mountable, steel chassis. The ZHCA-16
and ZHCA-16b are provided with an 18 inch (457 mm) long AC line cord and
a rear panel AC convenience outlet, permitting easy connections between racked
units.